This question is an exact duplicate of:
I want to know if it is possible to install a Debian application (or an Ubuntu PPA) that is not in the Kali repository especially because I want to install a bitcoin wallet (How can I install a bitcoin wallet on Kali Linux? and here) If Kali Linux is based on Debian,doesn't it mean that after doing the correct settings and probably other modifications you can install apps from the Debian repository? Also,I would like to know if Ubuntu PPAs can be added to Kali too and if they can,what do I need to do in order for the PPA to work? I am using Kali Linux 1.0.9 64-bit on my laptop.